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Details for Benchmark: CZ0362

N 32° 30.883 W 111° 16.400 (NAD 83)

Altitude: 1943.52

Coordinates may not be exact. Altitude is ADJUSTED and location is SCALED. (more info)

Location:
In PINAL county, AZ View Original Datasheet
Designation:
M 260
Marker Type:
survey disk
Setting:
light structures
Stability:
Mark of questionable or unknown stability.

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found on a benchmarking tour with Carmel

[Photos:]
photoM260

Recovered on a run for some benchmarks.

[Photos:]
photoCZ0362

Found in good shape as described.

[Photos:]
photoCZ0362

Recovered as described, in good condition.

[Photos:]
photoM 260 / CZ0362
A close-up of the mark.

RECOVERED IN GOOD CONDITION

The following report was submitted to the NGS Database:
[i]RECOVERED IN GOOD CONDITION. TO REACH THE STATION FROM THE MARANA INTERCHANGE OF INTERSTATE HIGHWAY 1O, FOLLOW THE FRONTAGE ROAD NORTHWEST FOR APPROXIMATELY 5.0 MILES TO THE STATION ON THE RIGHT. LOCATED IN THE TOP OF THE CENTER OF A CULVERT UNDER THE FRONTAGE ROAD.[/i]

[This entry was edited by wildearth2001 on Thursday, April 13, 2006 at 9:03:19 AM.]

[Photos:]
photoDISK
BM DISK

Documented History (by the NGS)

1/1/1945 by AZHD (MONUMENTED)
1/1/1960 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1960 5.2 MI NW FROM MARANA. IN PINAL COUNTY, 5.2 MILES NORTHWEST ALONG THE SOUTHERN PACIFIC CO. RAILROAD AND STATE HIGHWAY 84 FROM THE POST OFFICE AT MARANA, PIMA COUNTY, 5.2 MILES SOUTHEAST OF THE STATION AT RED ROCK, PINAL COUNTY, AT RAILROAD MILEAGE 956.70, 115 FEET NORTHEAST OF THE CENTERLINE OF NEW STATE HIGHWAY 84, AT A 24-INCH CORRUGATED-METAL PIPE CULVERT UNDER OLD STATE HIGHWAY 84, IN THE CENTER OF THE TOP OF THE NORTHEAST HEADWALL, 15.5 FEET NORTHEAST OF THE CENTERLINE OF THE OLD HIGHWAY, AND ABOUT 1/2 FOOT HIGHER THAN THE OLD HIGHWAY. AN ARIZONA STATE HIGHWAY DEPARTMENT STANDARD DISK, STAMPED M 260 1945.
1/1/1977 by USGS (GOOD)
RECOVERY NOTE BY US GEOLOGICAL SURVEY 1977 IN PINAL COUNTY, 5.2 MI NW. ALONG THE S.P. CO. RR. AND FRONTAGE RD. FROM THE POST OFFICE AT MARANA, PIMA COUNTY. 5.2 MI SE. OF THE S.P. RR. SIDING AT RED ROCK, PINAL COUNTY. AT RR. MILEAGE 956.70, 115 FT NE. OF THE CENTERLINE OF THE FRONTAGE RD., AT A 24-INCH CORRUGATED METAL PIPE CULVERT UNDER FRONTAGE RD., IN THE CENTER OF THE TOP OF THE NE. HEADWALL, 15.5 FT NE. OF THE CENTERLINE OF THE FRONTAGE RD., ABOUT 1/2 FT HIGHER THAN THE FRONTAGE RD. STD. DISK STAMPED M 260 1945.
1/1/1980 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1980 43.9 KILOMETERS (27.3 MILES) NORTHWEST ALONG THE SOUTHERN PACIFIC COMPANY RAILROAD FROM THE STATION AT TUCSON, 0.5 KILOMETER (0.3 MILE) NORTHWEST OF RAILROAD MILE POST 957, AT A 0.6 METER (2 FEET) PIPE CULVERT UNDER A FRONTAGE ROAD (OLD U.S. HIGHWAY 84) IN TOP OF THE NORTHEAST HEADWALL 1.25 METERS (4 FEET) NORTHWEST OF THE SOUTHEAST END, 36.5 METERS (119.7 FEET) SOUTHWEST OF THE SOUTHWEST RAIL, 4.75 METERS (15.6 FEET) NORTHEAST OF THE CENTERLINE OF THE ROAD. THE MARK IS 0.2 M ABOVE THE ROAD.

Control Text

  • The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds.
  • The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991.
  • The geoid height was determined by GEOID99.
  • The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (G = 980.6199 gals.).
  • The modeled gravity was interpolated from observed gravity values.

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